Build and Integrate API Connection
I need a developer who can design and implement an API connection from scratch, then integrate it smoothly into my existing system. I am flexible on the archite...
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Junior Full-Stack Developer, Backend emphasis
Junior Full-Stack Web Developer with backend focus. Primary responsibility Build and maintain the backend that connects the existing React frontend to the datab...
Read moreDashboard API Integration Consultant
Project Description Backend and database are already developed for a market analytics dashboard.I need a developer to integrate a few external market data APIs...
Read moreLeadExec API Integration Developer (Lead Posting, Ping/Post, Call Leads)
LeadExec API Integration Developer (Lead Posting, Ping/Post, Call Leads) We are looking for an experienced backend/API developer to implement a full LeadExec le...
Read moreMulti-Lender Lead Routing Backend
The WordPress marketing site that collects loan enquiries is finished; what I now need is the engine that sits behind it. Your mission is to take each form subm...
Read moreJava Spring Codebase Upgrade
I’m migrating an older Java backend—built on legacy Spring and Hibernate—into a fresh Spring Boot 3 project so the stack is fully modern and future-proof. The f...
Read moreEnhance PHP System Integrations
I’m looking to bring in a seasoned PHP developer who can jump straight into feature work on our integrations layer. The immediate goal is to expand and refine h...
Read moreFull-Stack Developer Needed for Multi-Vendor Marketplace (Angular + Spring Boot + AWS)
Full-Stack Developer Needed for Multi-Vendor Marketplace (Angular + Spring Boot + AWS) **Project Overview** We are looking for an experienced full-stack develop...
Read moreFull-Stack MERN E-Commerce Store Development -- 2
Full-Stack MERN E-Commerce Store Development Looking for an experienced MERN stack developer to build a complete e-commerce platform. Tech Stack: Frontend: Reac...
Read moreFull-Stack MERN E-Commerce Store Development
Full-Stack MERN E-Commerce Store Development Looking for an experienced MERN stack developer to build a complete e-commerce platform. Tech Stack: Frontend: Reac...
Read moreAngular-Spring Boot Multi-Vendor Ecommerce Platform
Multi-Vendor E-commerce Website Development (Angular + Spring Boot) I need a developer or a small team to build a multi-vendor e-commerce marketplace similar to...
Read morePHP React Full-Stack
I’m building a new product on AWS using PHP 8, React for web, and React Native for mobile. The front-end foundations are in place; where I need your expertise i...
Read moreMagento 2.4.8 API Credentials -- 2
Need to create fresh REST API credentials to list Magento 2.4.8 products and their options created under a secure integration. Need to hide selected product opt...
Read moreAI Video SaaS (Desktop) with FFmpeg & Local Models
I am looking for a developer to convert an AI video generation prototype (currently in Google AI Studio) into a commercial Tauri-based desktop application. The...
Read moreJava Spring Codebase Upgrade
I’m migrating an older Java backend—built on legacy Spring and Hibernate—into a fresh Spring Boot 3 project so the stack is fully modern and future-proof. The f...
Read more.NET Insurance Policy API
I’m building a REST-based .NET API dedicated to policy management for an Indian insurance platform. The immediate scope is twofold: enabling seamless policy cre...
Read moreNode.js API Development
I'm looking for an experienced Node.js developer to create an API that interacts with a MySQL database. The API is intended for a web application I'm building....
Read moreToshiba TCxSky POS Java Integration
I need a Java developer who already knows their way around the Toshiba TCxSky ACE POS platform. The immediate goal is integration with other systems so the stor...
Read moreFull Stack Developer for SaaS Application
We are looking for a Full-Stack Developer or Software Engineer with strong experience in building SaaS applications and integrating them with technical platform...
Read moreJava Spring Boot Backend Build -- 2
I am setting up a new service and require an experienced Java Backend Developer to design and develop the server-side application from scratch. The technology s...
Read moreHome Automation IoT Integration
I need a complete software layer that bridges several home-automation IoT devices with a secure, scalable backend. The goal is to give end-users a seamless way...
Read moreReact ERP With Microservice Architecture
I’m starting an ERP platform from a clean slate and need a partner who can take it end-to-end, beginning with a reusable React component library and extending a...
Read moreRESTful Web Backend API Development
I need a clean, well-structured RESTful API to power the backend of my web application. The API should follow standard HTTP methods, return JSON, and be easy to...
Read morePlant Monitoring
The project centers on an API-driven service built with Python 3.12 ,and acts as wrapper for other services,Flask and SQLAlchemy on top of PostgreSQL. I’m exten...
Read more3 BDC + 3 OData Entity Set in SAP
My Frontend Portal will consume Odata Web Services in SAP. My OData(SEGW) has 3 Entity Set (2 GET Call + 1 POST Call). The Get call pulls data from BAPI and the...
Read moreLaravel + Zoom SDK/API Collaboration Expert Needed
Zoom SDK/API Expert Needed to Assist Laravel Team (Troubleshooting & Optimization – Not From Scratch) Project Overview: We have an existing web application buil...
Read moreLooking for Experienced Bagisto Developer for UI Customization & Module Work
We are looking for an experienced Bagisto developer who can customize our store’s UI based on a provided reference design. Requirements: Strong hands-on experie...
Read moreIntegración Verifactu para Facturación Online
Necesito conectar mi actual sitio de facturas y presupuestos con la API de Verifactu para que cada factura que genero, modifico o anulo se registre automáticame...
Read moreFull-Stack .NET Multi-Service Portal
I need a complete end-to-end solution in C# and .NET that covers both the backend and the UI for a multi-service portal. Core features include AEPS transactions...
Read moreComprehensive Casino & Slots API
I’m ready to commission a robust, production-grade API that powers casino and slot games across web, mobile, and desktop channels. The service must expose endpo...
Read moreComplete Multi Platform Streaming App
Project Overview: I have a video streaming application (Movies & Series) that is partially developed. I am looking for an experienced Full-Stack Developer to ta...
Read moreResolve William Hill API 429
I’m calling the William Hill events API from a Python script that relies on the requests library. Even with a fixed-interval delay between calls, the endpoint s...
Read moreMastercard API Payment Integration
I have opened a profile with Mastercard Payment Gateway Services and now need the REST API at https://bobsal.gateway.mastercard.com/ wired into my system so the...
Read moreBlade PHP UI Stabilization
I run a Laravel site that relies on Blade templates and supports both en-IN and en-US locales. At the moment the Admin Panel is suffering from layout glitches,...
Read moreCustom Multi-Vendor E-Commerce Build
I’m building a full-scale, multi-vendor store for physical products and need a from-scratch solution (strictly no WordPress or WooCommerce). The project breaks...
Read moreMagento 2.4.8 API Credentials
Need a fresh set of REST API credentials created under a secure integration. For full access, must work on our local system with ultraviewer, etc.
Read moreSoftware Cloud Developer
I am a Software Developer with over 7 years of hands-on experience in Java and AWS services, and I am excited to begin my freelancing journey on Upwork. Through...
Read moreLoveable.dev Gmail-Outlook Integration
I have a functioning Loveable.dev app, but it currently lacks any native way to connect with external mailboxes. I need a developer who can wire up full OAuth-b...
Read moreAPI development
This is a full-time remote role for a Back End Developer. The Back End Developer will be responsible for designing, developing, and maintaining scalable back-en...
Read moreBulk SMS Scheduler Development
I need a reliable bulk-SMS platform that lets me compose a message once, load thousands of numbers, and schedule exactly when every batch leaves the gateway. Th...
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